Electromagnetic servo drive, especially for operating combustion engine gas exchange valve, has electromagnetic device with two magnetic circuits, each with electromagnet(s) forming pole surfaces

摘要

The electromagnetic servo drive has an electromagnetic device and a rocker armature (120) movable between first and second switch positions in which a first end contacts a first pole surface (116) of and a second position in which a second end contacts a second pole surface (118). The electromagnetic device has two magnetic circuits (100,102), each with at least one electromagnet forming the f and/or second pole surfaces.